Where: Dawson County, Montana (47.1° N, 104.7° W: paleocoordinates 53.5° N, 77.8° W)

• coordinate based on nearby landmark

When: Late/Upper Maastrichtian (70.6 - 66.0 Ma)

• bed-level stratigraphic resolution

Environment/lithology: terrestrial; claystone

Size classes: macrofossils, mesofossils

Collected by E. Gaffney in 1970; reposited in the AMNH

Collection methods: surface (in situ),

Primary reference: W. J. Joyce, D. B. Brinkman, and T. R. Lyson. 2019. A new species of trionychid turtle, Axestemys infernalis sp. nov., from the Late Cretaceous (Maastrichtian) Hell Creek and Lance formations of the Northern Great Plains, USA. Palaeontologia Electronica 22(3):72:1-28 [E. Vlachos/E. Vlachos/P. Mannion]more details

Purpose of describing collection: taxonomic analysis

PaleoDB collection 206550: authorized by Evangelos Vlachos, entered by Evangelos Vlachos on 19.11.2019

Creative Commons license: CC BY (attribution)